Opublikowano informacje o dw\u00f3ch lukach w bezp\u0142atnym pakiecie biurowym LibreOffice, z kt\u00f3rych najniebezpieczniejsza potencjalnie umo\u017cliwia wykonanie kodu po otwarciu specjalnie przygotowanego dokumentu. Pierwsza luka zosta\u0142a bez dodatkowych og\u0142osze\u0144 naprawiona w marcu w wersjach 7.4.6 i 7.5.1, a druga w majowych aktualizacjach LibreOffice 7.4.7 i 7.5.3. <\/p>\n
Pierwsza luka (CVE-2023-0950) potencjalnie pozwala na wykonanie w\u0142asnego kodu w systemie po otwarciu arkusza kalkulacyjnego, kt\u00f3ry zawiera specjalnie zmodyfikowane formu\u0142y, takie jak AGGREGATE, w kt\u00f3rych podano mniej parametr\u00f3w, ni\u017c oczekiwano. Problem jest spowodowany przepe\u0142nieniem indeksu tablicy przez doln\u0105 granic\u0119 (underflow) w kodzie analizy formu\u0142 (ScInterpreter), stosowanym podczas przetwarzania arkuszy kalkulacyjnych. <\/p>\n
Druga podatno\u015b\u0107 (CVE-2023-2255) umo\u017cliwia atakuj\u0105cemu przygotowanie specjalnie sformatowanego dokumentu, przy otwieraniu kt\u00f3rego bez wy\u015bwietlenia komunikatu i ostrze\u017cenia zostan\u0105 za\u0142adowane zewn\u0119trzne linki, co stoi w sprzeczno\u015bci z deklarowanym zachowaniem LibreOffice, kt\u00f3re zak\u0142ada wy\u015bwietlenie ostrze\u017cenia przy \u0142adowaniu powi\u0105zanego zawarto\u015bci. Problem spowodowany jest niedor\u00f3bk\u0105 w kodzie zapytania o uprawnienia podczas korzystania z mechanizmu \u201eFloating Frames\u201d, podobnego do iframe w HTML, umo\u017cliwiaj\u0105cego dynamiczne w\u0142\u0105czenie zawarto\u015bci zewn\u0119trznych plik\u00f3w do dokumentu. \u0420\u0430\u0441\u043a\u0440\u044b\u0442\u0430 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e \u0434\u0432\u0443\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044f\u0445 \u0432 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u043c \u043e\u0444\u0438\u0441\u043d\u043e\u043c \u043f\u0430\u043a\u0435\u0442\u0435 LibreOffice, \u043d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043e\u043f\u0430\u0441\u043d\u0430\u044f \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043a\u043e\u0434 \u043f\u0440\u0438 \u043e\u0442\u043a\u0440\u044b\u0442\u0438\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430. \u041f\u0435\u0440\u0432\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0431\u044b\u043b\u0430 \u0431\u0435\u0437 \u043b\u0438\u0448\u043d\u0435\u0439 \u043e\u0433\u043b\u0430\u0441\u043a\u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u043c\u0430\u0440\u0442\u043e\u0432\u0441\u043a\u0438\u0445 \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u0445 7.4.6 \u0438 7.5.1, \u0430 \u0432\u0442\u043e\u0440\u0430\u044f \u0432 \u043c\u0430\u0439\u0441\u043a\u0438\u0445 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f\u0445 LibreOffice 7.4.7 \u0438 7.5.3. \u041f\u0435\u0440\u0432\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2023-0950) \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u0432 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-108766","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Dwie luki w LibreOffice | ProHoster","description":"Opublikowano informacje o dw\u00f3ch lukach w bezp\u0142atnym pakiecie biurowym LibreOffice, z kt\u00f3rych najniebezpieczniejsza potencjalnie umo\u017cliwia wykonanie kodu po otwarciu specjalnie przygotowanego dokumentu.","canonical_url":"https:\/\/prohoster.info\/pl\/blog\/news\/dve-uyazvimosti-v-libreoffice","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"pl_PL","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0414\u0432\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 LibreOffice | ProHoster","og:description":"\u0420\u0430\u0441\u043a\u0440\u044b\u0442\u0430 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e 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\u0179r\u00f3d\u0142o: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"